<!--  -->
<template>
  <!-- 商品分类导航 -->
  <div class="type-nav">
    <div class="container">
      <div @mouseleave="hoverRem">
        <h2 class="all" @mouseenter="enterShow">全部商品分类</h2>
        <transition name="sort">
          <div class="sort" v-show="show">
            <div class="all-sort-list2" @click="tallGo">
              <div
                :class="['item bo', activeIndex == index ? 'active' : '']"
                v-for="(cary, index) in caryList"
                :key="cary.categoryId"
              >
                <h3 @mouseenter="hoverAct(index)">
                  <span
                    href=""
                    :data-categoryName="cary.categoryName"
                    :data-category1Id="cary.categoryId"
                    >{{ cary.categoryName }}</span
                  >
                </h3>
                <!-- 二三级分类 -->
                <div
                  class="item-list clearfix"
                  :style="{ display: activeIndex == index ? 'block' : 'none' }"
                >
                  <div
                    class="subitem"
                    v-for="item2 in cary.categoryChild"
                    :key="item2.categoryId"
                  >
                    <dl class="fore">
                      <dt>
                        <span
                          :data-categoryName="item2.categoryName"
                          :data-category2Id="item2.categoryId"
                          >{{ item2.categoryName }}</span
                        >
                      </dt>
                      <dd>
                        <em
                          v-for="item3 in item2.categoryChild"
                          :key="item3.categoryId"
                        >
                          <span
                            :data-categoryName="item3.categoryName"
                            :data-category3Id="item3.categoryId"
                            >{{ item3.categoryName }}</span
                          >
                        </em>
                      </dd>
                    </dl>
                  </div>
                </div>
              </div>
            </div>
          </div>
        </transition>
      </div>

      <nav class="nav">
        <a href="###">服装城</a>
        <a href="###">美妆馆</a>
        <a href="###">尚品汇超市</a>
        <a href="###">全球购</a>
        <a href="###">闪购</a>
        <a href="###">团购</a>
        <a href="###">有趣</a>
        <a href="###">秒杀</a>
      </nav>
    </div>
  </div>
</template>

<script>
//这里可以导入其他文件（比如：组件，工具js，第三方插件js，json文件，图片文件等等）
//例如：import 《组件名称》 from '《组件路径》';
import { mapState } from "vuex";
export default {
  //import引入的组件需要注入到对象中才能使用
  name: "TypeNav",
  components: {},
  data() {
    //这里存放数据
    return {
      activeIndex: -1,
      show: true,
    };
  },
  mounted() {
    if (this.$route.path != "/Home") {
      this.show = false;
    }
  },
  //监听属性 类似于data概念
  computed: {
    ...mapState({
      caryList: (state) => state.home.caryListdata,
    }),
  },

  //监控data中的数据变化
  watch: {},
  //方法集合
  methods: {
    // 鼠标移入事件
    hoverAct(index) {
      this.activeIndex = index;
    },
    // 鼠标移出
    hoverRem() {
      this.activeIndex = -1;
      if (this.$route.path != "/Home") {
        this.show = false;
      }
    },
    // 鼠标移出
    enterShow() {
      this.show = true;
    },
    tallGo(event) {
      let { categoryname, category1id, category2id, category3id } =
        event.target.dataset;
      if (categoryname) {
        let location = { name: "Search" };
        let query = { categoryName: categoryname };
        if (category1id) {
          query.category1Id = category1id;
        } else if (category2id) {
          query.category2Id = category2id;
        } else {
          query.category3Id = category3id;
        }
        // 判断： 如果路由跳转时，有params参数的话，需要带上
        if(this.$route.params){
          location.params = this.$route.params
          location.query = query;
          this.$router.push(location);
        }
      }
    },
  },
  beforeCreate() {}, //生命周期 - 创建之前
  //生命周期 - 创建完成（可以访问当前this实例）
  created() {},
  beforeMount() {}, //生命周期 - 挂载之前
  //生命周期 - 挂载完成（可以访问DOM元素）

  beforeUpdate() {}, //生命周期 - 更新之前
  updated() {}, //生命周期 - 更新之后
  beforeDestroy() {}, //生命周期 - 销毁之前
  destroyed() {}, //生命周期 - 销毁完成
  activated() {}, //如果页面有keep-alive缓存功能，这个函数会触发
};
</script>
<style lang="less">
.type-nav {
  border-bottom: 2px solid #e1251b;

  .container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    position: relative;

    .all {
      width: 210px;
      height: 45px;
      background-color: #e1251b;
      line-height: 45px;
      text-align: center;
      color: #fff;
      font-size: 14px;
      font-weight: bold;
    }

    .nav {
      a {
        height: 45px;
        margin: 0 22px;
        line-height: 45px;
        font-size: 16px;
        color: #333;
      }
    }

    .sort {
      position: absolute;
      left: 0;
      top: 45px;
      width: 210px;
      height: 461px;
      position: absolute;
      background: #fafafa;
      z-index: 999;

      .all-sort-list2 {
        .item {
          cursor: pointer;

          h3 {
            line-height: 30px;
            font-size: 14px;
            font-weight: 400;
            overflow: hidden;
            padding: 0 20px;
            margin: 0;

            a {
              color: #333;
            }
          }

          .item-list {
            display: none;
            position: absolute;
            width: 734px;
            min-height: 460px;
            background: #f7f7f7;
            left: 210px;
            border: 1px solid #ddd;
            top: 0;
            z-index: 9999 !important;

            .subitem {
              float: left;
              width: 650px;
              padding: 0 4px 0 8px;

              dl {
                border-top: 1px solid #eee;
                padding: 6px 0;
                overflow: hidden;
                zoom: 1;

                &.fore {
                  border-top: 0;
                }

                dt {
                  float: left;
                  width: 54px;
                  line-height: 22px;
                  text-align: right;
                  padding: 3px 6px 0 0;
                  font-weight: 700;
                }

                dd {
                  float: left;
                  width: 415px;
                  padding: 3px 0 0;
                  overflow: hidden;

                  em {
                    float: left;
                    height: 14px;
                    line-height: 14px;
                    padding: 0 8px;
                    margin-top: 5px;
                    border-left: 1px solid #ccc;
                  }
                }
              }
            }
          }

          //   &:hover {
          //     .item-list {
          //       display: block;
          //     }
          //   }
        }

        // .item:hover{
        //     background-color: pink;
        // }
      }
    }

    .sort-enter {
      height: 0;
    }

    .sort-enter-to {
      height: 461px;
      overflow: hidden;
    }

    .sort-enter-active {
      transition: all 0.3s linear;
    }
  }
}

.active {
  background-color: pink;
}
</style>
